Machine for making paper bags



UNTTED sTATEs PATENT orifice.

FRANCIS VOLLE, OF BETHLEHEM, PENNSYLVANIA.

MACHINE FOR MAKING PAPER BAGS.

Specicaton of Letters Patent No. 20,838, dated July 6, 1858i.

To all whom it may concern:

Be it known that I, FRANCIS VOLLE, of the borough of Bethlehem, in the county of Northampton and State of Pennsylvania, have invented new and useful improvements to be applied to machinery for making bags of paper or other suitable material to facilitate the economical and rapid working thereof; and I do declare that t-he following is a full, clear, and exact description of the construction and operation of the same.

The invent-ion consists of two novel arrangements; the one for preventing the loss of the strips of paper usually cut o in order to make the bottom lap or seam of the bag; and the other, in the use of a revolving shaft to lap the side of the bag.

The accompanying drawings, making part of this specification, represent the parts em-v bracing all the features of my new invention.

Figure l, is a perspective view of the lapping apparatus. Fig. 2, is a sectional view of the lapping apparatus. Fig. 3, is a top view of the same, showing in red outline the position of the paper to be cut and lapped. Fig. 4, is a sectional view of the revolving shaft used in lapping the side of the bag, and the parts connected therewith. Fig. 5, exhibit-s the shape of the paper to be made into a bag, and the part to be lapped over. Fig. 6, exhibits the edge lapped over. Fig. 7, exhibits the paper folded, ready for pasting and lapping. Fig. S, is a plan of the parts connected with the revolving shaft for lapping the side of the bag. Fig. 9, sheet II, shows the gear connect-ion of the driving shaft and the feed roller W.

In Figs. l, 2, and 3, A, A, represents a table or inclined plane upon which the paper to be made into a bag is placed. The feeding of the paper may be done by hand, or by additional machinery, as described in the specification of a patent granted me the twenty ninth day of May, one thousand eight hundred and fifty-five.

In preparing a piece of paper for making a bag, it is usual to cut off part of one edge, as B, B, Fig. 5, so that the remaining part of the same edge can, when the piece is doubled, as Fig. 7 be lapped over it to make the joint or seam in the bottom of the bag. Instead of cutting off this part of the edge, (B, B, Fig. 5) I lap it over as shown in Fig. 6, so that when the piece is doubled, as Fig. 7, the strip, B, B, Fig, 5, comes between the two sides of the bag. This is performed by what I call a lapping apparatus, consisting of three principal parts; the shear, the creaser, and t-he lapper.

The shear is a metal blade, L, which hangs on a fulcrum pin, m, Figs. 1, 3.

O, is a fixed strip of steel standing outl at an obtuse angle from the lower part of the table, and against which the shear blade cuts. The shear may be entirely of steel, or be made of wood or iron with a strip of steel attached to it. It has an arm, n, made to extend under one arm, D, of the creaser frame. Around the fulcrum pin, my, of the shear, there is a coiled spring to raise, and to hold up the point of t-he shear blade.

The creaser consists of the following parts: C, Figs. 1, 2, and 3, is a dull edged metal blade, with a flange, e, c, at each end, set at right angles. This blade is movable on pins, c, c, running through the flanges 6, 6, and the two arms, D, D, of the rock shaft E, hung on the centers, (l, d, and working in two bearings cZ, d. The blade C, is held in its proper position by a spring f, pressing on its upper edge.Y It is connected by the rod to the spring K under t-he table, A, A. The lapper consists of a square shaft, F, swinging on the centers, g, g, in the bearings g, g, with a metal blade, G, attached to the top of the shaft, F, and projecting over it, on the side toward the table.

H, is an arm fixed to one end of the square shaft, F.

I, is a revolving shaft, supported in bearings in the fra-ming, with two cams, z', and

K is a spring attached at one end to the bottom of the table, A, with an arm, 7c, projecting under the shaft, I.

K', represents the spring detached from the table to show the project-ing arm 7c.

The paper being placed on the inclined plane, or table A, A, Fig. 8, as represented in red outline, part of one edge of the paper being under the shear blade, L, under the creaser blade, C, and on the lapper edge, Gr; the shaft I, Fig. 2, being made to revolve by gear connection with other parts of the machinery, or independently thereof, the cam, j, will bear down on the spring by passing the arm, It; the one end of the spring, K, being connected with the creaser arm D, by the rod, ai, the blade, C, is brought down so that the lower edge will press upon the paper near the edge of the table, in the direction of the line dotted with red, Fig. 3.

The shear blade being so constructed with an arm, n, that the movement of the arm, D, of the creaser shaft will operate upon it when forced down, this will cause the shear to malre a diagonal slit, a, a, Fig. 5, in the direction of the steel blade, 0, 0, Fig. 3, against which it cuts. While the creaser blade, C, is held down, during the time the cam, j, is passing over the length of the arm, 7c; the other cam, c', operates upon theJI arm, H, by forcing it back. This brings the projection, G, of the shaft, F, against the creaser blade, C, thus turning over the edge of the paper. The creaser blade being held merely by the spring, f, it will yield to the pressure of the projection, G, and escape from its grasp at the moment it bears hard upon the edge of the table, and so complete the lap, as represented by Fig. 6. The cams having passed the arm 7c, of the spring, K, and the arm, H, of the lapper shaft, F, the creaser is raised by the spring, K, and the lapper brought to its former open position by the spring, p. This operation being completed, the paper is folded into shape, as exhibited by Fig. 7, ready for passing and lapping. NeXt I describe the revolving shaft for lapping the side of the bag. Fig. 4 is a sectional view, and Fig'. 8, a plan of this improvement. N, is th-e revolving lapper shaft, consisting of a small roller, geared by a spur wheel to the feed roller, M. T, is the driving shaft revolving in the direction of the arrow Fig. 9, sheet 2.

g, Q, and u, u, are two aprons, consisting of tapes running around the rollers R, M, and S, N, with journals working in bearings in the sides of the framing. The roller, M, receives an intermittentrotary motion by means of a spur wheel on one end of it, a, Fig. 9, sheet. 2, which gears another spur wheel, b, Fig. 9, on the driving shaft, which has teeth on a part only of its circumference. This causes the apron to receive one motion for every revolution of the driving shaft, and then to become stationary for a time.

Referring to Figs. 4 and 8, s, is the creaser blade, attached to two arms, o, o, of a rock shaft, w. o, is another arm of the shaft, with a poise 7. V, Y, are two rollers with journals running in bearings in the framing.

An endless apron, consisting of tapes, runs around the rollers M, Y, which receives the bags and delivers them when finished for drying. t, is a stud on the driving shaft.

We suppose the paper cut, lapped and folded for a bag, as Fig. 7, placed upon the apron over the roller, R. One of the movements of the aprons will serve to carry the folded paper forward toward the driving shaft, so far, that it will have the edge intended for the lap of the side of the bag upon the lapper roller, u, as represented in red outline Fig. 4; while in this position we suppose it to be pasted by means of proper mechanism, and immediately as this is done, the shaft, T, revolving in the direction of the arrow, the shud, t, operates upon the arm, r, of the creaser and brings down the blade, s, upon the paper, in the line, Z, w, Fig. 7, where the lapping commences, which is close to the edge of the upper side of the bag, and forces it down between the converging surfaces of the rollers, M, U. The rollers having an intermittentl motion, now revolve, the aprons are set in motion and the paper is carried down between the rollers, which being set close together finish the lap of the bag. The creaser blade, s, is

'raised as soon as detached from the stud, t,

by the poise, W, attached to an arm, o, of the creaser shaft. The bag is delivered upon the apron, L, passes under the roller, U, where it receives another slight pressure and is completed for drying.

What I claim as my invention and new improvement, and desire to secure by Letters Patent of the United States, is,

l. The combination of the creaser, C, and lapper, F, G, arranged and operating substantially in the manner, and for the purpose herein described and set forth.

2. The revolving lapper shaft, U, in combination with the creaser, o, s, the feed roller, M, and aprons, u, g, substantially as herein described, the creaser being brought in operation on the bags during the intermission in the motion of the feed rollers.

FRANCIS VVOLLE.

Vitnesses:

SYLvEsTER VVOLLE, lV. C. REIGHEL. 

